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The Milwaukee 43-78-0155 is a genuine OEM Hub Assembly designed for professional Tilt-Lok 7-1/4" circular saws and industrial panel saw motors. This component serves as the central rotating interface that transfers torque from the drivetrain to attached accessories such as wheels, discs, drums, or pulleys. It is precision-engineered to secure the drive spindle and lower guard while maintaining alignment between the spindle bore and the outer mounting surface.
Features
Genuine Milwaukee OEM replacement part
Precision machined for concentricity to ensure balanced, vibration-free rotation at operating speeds
Transfers torque from the drivetrain to attached rotating accessories or drive components
Secures the drive spindle and lower guard assembly
Engineered to reduce run-out, imbalance, and slippage between the drive shaft and attached components
Restores smooth, accurate rotation to tools with worn, cracked, or damaged original hubs
Specifications
Manufacturer: Milwaukee Electric Tool Corp
Part Number: 43-78-0155
Component Type: Hub Assembly
Material: Steel, High-grade polymer, and metal alloy core
Construction: Composite plastic and metal parts
Pack Quantity: 1
Installation Tools Required: Screwdriver, Wrench set
Applications
Milwaukee 6380-51 (66 Mm Tilt-Lok Circle Saw W/Cs)
Milwaukee 6380-55 (Circular Saw)
Milwaukee 6390-20 (7-1/4" Circular Saw with Tilt-Lok Handle)
Milwaukee 6390-21 (Saw)
Milwaukee 6391-21 (Left Blade 7-1/4" Circular Saw with Tilt-Lok Handle)
Milwaukee 6394 (Circular Saw)
Milwaukee 6394-21 (7-1/4" Circular Saw)
Milwaukee 6485-68 (Saw Motor)
Milwaukee 6486-20 (Saw Motor)
Milwaukee 6486-68 (O.E.M. Saw Motor)
Milwaukee 6486-69 (Ssc 120v Panel Saw Motor Oem)
Industrial panel saw motors
Tilt-Lok 7-1/4" circular saws
Torque transfer for wheels, discs, drums, and pulleys
